CVE-2022-43381

Local SMB client daemon service interruption

Published Dec 23, 2022 · Updated Apr 15, 2025

Resource-management error in the SMB client daemon in IBM AIX 7.1 through 7.3 and VIOS 3.1 allows local users to interrupt service. IBM has not published the faulty resource operation or the input that triggers the daemon failure. Exploitation requires non-privileged local access and affects availability only; no data disclosure or modification is reported.

CVSS severity6.2
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-management error in the SMB client daemon in IBM AIX 7.1 through 7.3 and VIOS 3.1 allows local users to interrupt service. IBM has not published the faulty resource operation or the input that triggers the daemon failure. Exploitation requires non-privileged local access and affects availability only; no data disclosure or modification is reported.

The record

CVE
CVE-2022-43381
Published
Dec 23, 2022
Updated
Apr 15, 2025
Vendor
IBM
Product
AIX
Classifications
CWE-399, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.1, 7.2, 7.3, VIOS 3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · AIXversion=7.1, 7.2, 7.3, VIOS 3.1

Published CVSS scores

6.2IBM CorporationCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-399Resource Management Errors
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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